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Stability and Bifurcation Analysis on an Ecoepidemiological Model with Stage Structure and Time Delay

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  • Lingshu Wang
  • Guanghui Feng

Abstract

An ecoepidemiological predator-prey model with stage structure for the predator and time delay due to the gestation of the predator is investigated. The effects of a prey refuge with disease in the prey population are concerned. By analyzing the corresponding characteristic equations, the local stability of each of the feasible equilibria of the model is discussed. Further, it is proved that the model undergoes a Hopf bifurcation at the positive equilibrium. By means of appropriate Lyapunov functions and LaSalle’s invariance principle, sufficient conditions are obtained for the global stability of the semitrivial boundary equilibria. By using an iteration technique, sufficient conditions are derived for the global attractiveness of the positive equilibrium.

Suggested Citation

  • Lingshu Wang & Guanghui Feng, 2014. "Stability and Bifurcation Analysis on an Ecoepidemiological Model with Stage Structure and Time Delay," Abstract and Applied Analysis, Hindawi, vol. 2014, pages 1-10, August.
    • Handle: RePEc:hin:jnlaaa:727818
    DOI: 10.1155/2014/727818
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